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APHY 101 Ch 13: Anatomy of the Nervous System (CNS) Ivy Tech Questions and Verified Rationalized Answers, 100% Guarantee Pass 2025/2026$12.99
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APHY 101 Ch 13: Anatomy of the Nervous
System (CNS) Ivy Tech
Adult brain regions
Cerebral hemispheres; Diencephalon; Cerebellum; Brain stem (midbrain, pons, and medulla)
Brain
Similar sample to the spinal wire. Made up of cerebral hemispheres and cerebellum. Additional
outer areas of grey count in brain referred to as cortex. Cortex disappears in mind stem with
scattered grey depend nuclei amid white depend. Responsible for judgment, interpretation,
regulation of homeostasis.
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Spinal twine
Has a primary cavity surrounded by using grey remember; External white depend composed of
myelinated fiber tracts; Reflexes, fast conversation between the peripheral fearful machine and
the mind. It connects nearly all components of the frame to the brain and starts offevolved at the
foramen magnum and ends at L1 or L2 vertebra.
Encephalitis
Acute irritation of the mind resulting either from a viral infection or whilst the body's own immune
system mistakenly attacks mind tissue
, Longitudinal fissure
Separates the right and left hemispheres.
Transverse cerebral fissure
The ____ is the deep groove that separates cerebrum and cerebellum.
Relevant sulcus
The _____ is the shallow groove that separates the precentral gyrus of frontal lobe and the
postcentral gyrus of parietal lobe.
Cerebral cortex
Thin, superficial layer of gray depend. Forty% mass of mind. Site of conscious mind:
cognizance, sensory belief, voluntary motor initiation, verbal exchange, memory garage,
knowledge.
Gray rely
The darker tissue of the brain and spinal wire, consisting specially of nerve cell our bodies,
branching dendrites, and axon terminals.
Neuron mobile bodies, dendrites, axon terminals
What is grey matter composed of?
White matter
Named for its pretty light look as a consequence of the lipid content material of myelin wrapped
round nerve fibers (axons).
Myelinated
White rely consists largely of _____ fibers bundled into huge tracts. These fibers and tracts are
categorised in line with the course wherein they run as association (join regions of the identical
hemisphere), commissural (join left and proper), or projection (connect superior and inferior).
Nerve
package deal of axons within the PNS
Tract
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